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makkiz [27]
3 years ago
12

A square with an area of 9cm2. If each side has its length doubled, what is the new area?

Mathematics
1 answer:
cestrela7 [59]3 years ago
4 0

Answer:

36

Step-by-step explanation:

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How would I solve this? I do not get the problem.
Stolb23 [73]
Find the area of the CD. (I used P for pi, too lazy @[email protected])
A=Pr² - Pr²
radius of the small hole in the middle, 0.75cm
radius of the CD, 6cm
A=3.14*6²-3.14*0.75²
A=111.27375cm²
The Approximate area of the CD is 111.27cm²
8 0
3 years ago
Customers at Beans Coffee Shop have entered their name in a drawing for one of 4 gift cards. The gift cards each have a value of
Dimas [21]

Answer:

36,060,024 ways

Step-by-step explanation:

To choose the winner in this case, the order is very important because it determines who is chosen first  out of the seventy-nine customers whose names were entered for the draw.

The above supports the reason Permutation will be used instead of Combination.

The total number of ways is given by:

⁷⁹P₄ = 79!/(79-4)!

       =  79!/75!

       = [79 x 78 x 77 x 76 x75!]/75!

       = 79 x 78 x 77 x 76

       =   36,060,024 ways

This implies that there are  36,060,024 ways the Bean Coffee Shop could choose the winners.

8 0
3 years ago
Lydia invested $8,300 in an account paying an interest rate of 2.2% compounded
Dennis_Churaev [7]

Answer:

1245

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Determine whether the following sequence is geometric. If​ so, find the common ratio.
Debora [2.8K]

The sequence is geometric and the common ratio is 2

7 0
2 years ago
Every person has blood type O, A, B, or AB. A random group of people are blood-typed, and the results are shown in the table.
Evgesh-ka [11]

Answer:

12%

Step-by-step explanation:

P=\frac{6}{22+20+6+2} =.12

6 0
3 years ago
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